cve-2023-52885
Vulnerability from cvelistv5
Published
2024-07-14 07:11
Modified
2024-12-19 08:27
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Fix UAF in svc_tcp_listen_data_ready() After the listener svc_sock is freed, and before invoking svc_tcp_accept() for the established child sock, there is a window that the newsock retaining a freed listener svc_sock in sk_user_data which cloning from parent. In the race window, if data is received on the newsock, we will observe use-after-free report in svc_tcp_listen_data_ready(). Reproduce by two tasks: 1. while :; do rpc.nfsd 0 ; rpc.nfsd; done 2. while :; do echo "" | ncat -4 127.0.0.1 2049 ; done KASAN report: ================================================================== BUG: KASAN: slab-use-after-free in svc_tcp_listen_data_ready+0x1cf/0x1f0 [sunrpc] Read of size 8 at addr ffff888139d96228 by task nc/102553 CPU: 7 PID: 102553 Comm: nc Not tainted 6.3.0+ #18 Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 11/12/2020 Call Trace: <IRQ> dump_stack_lvl+0x33/0x50 print_address_description.constprop.0+0x27/0x310 print_report+0x3e/0x70 kasan_report+0xae/0xe0 svc_tcp_listen_data_ready+0x1cf/0x1f0 [sunrpc] tcp_data_queue+0x9f4/0x20e0 tcp_rcv_established+0x666/0x1f60 tcp_v4_do_rcv+0x51c/0x850 tcp_v4_rcv+0x23fc/0x2e80 ip_protocol_deliver_rcu+0x62/0x300 ip_local_deliver_finish+0x267/0x350 ip_local_deliver+0x18b/0x2d0 ip_rcv+0x2fb/0x370 __netif_receive_skb_one_core+0x166/0x1b0 process_backlog+0x24c/0x5e0 __napi_poll+0xa2/0x500 net_rx_action+0x854/0xc90 __do_softirq+0x1bb/0x5de do_softirq+0xcb/0x100 </IRQ> <TASK> ... </TASK> Allocated by task 102371: kasan_save_stack+0x1e/0x40 kasan_set_track+0x21/0x30 __kasan_kmalloc+0x7b/0x90 svc_setup_socket+0x52/0x4f0 [sunrpc] svc_addsock+0x20d/0x400 [sunrpc] __write_ports_addfd+0x209/0x390 [nfsd] write_ports+0x239/0x2c0 [nfsd] nfsctl_transaction_write+0xac/0x110 [nfsd] vfs_write+0x1c3/0xae0 ksys_write+0xed/0x1c0 do_syscall_64+0x38/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc Freed by task 102551: kasan_save_stack+0x1e/0x40 kasan_set_track+0x21/0x30 kasan_save_free_info+0x2a/0x50 __kasan_slab_free+0x106/0x190 __kmem_cache_free+0x133/0x270 svc_xprt_free+0x1e2/0x350 [sunrpc] svc_xprt_destroy_all+0x25a/0x440 [sunrpc] nfsd_put+0x125/0x240 [nfsd] nfsd_svc+0x2cb/0x3c0 [nfsd] write_threads+0x1ac/0x2a0 [nfsd] nfsctl_transaction_write+0xac/0x110 [nfsd] vfs_write+0x1c3/0xae0 ksys_write+0xed/0x1c0 do_syscall_64+0x38/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc Fix the UAF by simply doing nothing in svc_tcp_listen_data_ready() if state != TCP_LISTEN, that will avoid dereferencing svsk for all child socket.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/42725e5c1b181b757ba11d804443922982334d9bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7e1f989055622fd086c5dfb291fc72adf5660b6fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c7b8c2d06e437639694abe76978e915cfb73f428Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cd5ec3ee52ce4b7e283cc11facfa420c297c8065Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dfc896c4a75cb8cd7cb2dfd9b469cf1e3f004254Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ef047411887ff0845afd642d6a687819308e1a4ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fbf4ace39b2e4f3833236afbb2336edbafd75eeePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fc80fc2d4e39137869da3150ee169b40bf879287Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/42725e5c1b181b757ba11d804443922982334d9bPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/7e1f989055622fd086c5dfb291fc72adf5660b6fPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c7b8c2d06e437639694abe76978e915cfb73f428Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/cd5ec3ee52ce4b7e283cc11facfa420c297c8065Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/dfc896c4a75cb8cd7cb2dfd9b469cf1e3f004254Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/ef047411887ff0845afd642d6a687819308e1a4ePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/fbf4ace39b2e4f3833236afbb2336edbafd75eeePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/fc80fc2d4e39137869da3150ee169b40bf879287Patch
Impacted products
Vendor Product Version
Linux Linux Version: 4.8
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T23:18:41.393Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/c7b8c2d06e437639694abe76978e915cfb73f428"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/dfc896c4a75cb8cd7cb2dfd9b469cf1e3f004254"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/42725e5c1b181b757ba11d804443922982334d9b"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/cd5ec3ee52ce4b7e283cc11facfa420c297c8065"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/fbf4ace39b2e4f3833236afbb2336edbafd75eee"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/ef047411887ff0845afd642d6a687819308e1a4e"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/7e1f989055622fd086c5dfb291fc72adf5660b6f"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/fc80fc2d4e39137869da3150ee169b40bf879287"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-52885",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T17:00:55.699629Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-11T17:34:18.417Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/sunrpc/svcsock.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c7b8c2d06e437639694abe76978e915cfb73f428",
              "status": "affected",
              "version": "fa9251afc33c81606d70cfe91800a779096442ec",
              "versionType": "git"
            },
            {
              "lessThan": "dfc896c4a75cb8cd7cb2dfd9b469cf1e3f004254",
              "status": "affected",
              "version": "fa9251afc33c81606d70cfe91800a779096442ec",
              "versionType": "git"
            },
            {
              "lessThan": "42725e5c1b181b757ba11d804443922982334d9b",
              "status": "affected",
              "version": "fa9251afc33c81606d70cfe91800a779096442ec",
              "versionType": "git"
            },
            {
              "lessThan": "cd5ec3ee52ce4b7e283cc11facfa420c297c8065",
              "status": "affected",
              "version": "fa9251afc33c81606d70cfe91800a779096442ec",
              "versionType": "git"
            },
            {
              "lessThan": "fbf4ace39b2e4f3833236afbb2336edbafd75eee",
              "status": "affected",
              "version": "fa9251afc33c81606d70cfe91800a779096442ec",
              "versionType": "git"
            },
            {
              "lessThan": "ef047411887ff0845afd642d6a687819308e1a4e",
              "status": "affected",
              "version": "fa9251afc33c81606d70cfe91800a779096442ec",
              "versionType": "git"
            },
            {
              "lessThan": "7e1f989055622fd086c5dfb291fc72adf5660b6f",
              "status": "affected",
              "version": "fa9251afc33c81606d70cfe91800a779096442ec",
              "versionType": "git"
            },
            {
              "lessThan": "fc80fc2d4e39137869da3150ee169b40bf879287",
              "status": "affected",
              "version": "fa9251afc33c81606d70cfe91800a779096442ec",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/sunrpc/svcsock.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.8"
            },
            {
              "lessThan": "4.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.322",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.291",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.251",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.121",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.39",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.4.*",
              "status": "unaffected",
              "version": "6.4.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.5",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nSUNRPC: Fix UAF in svc_tcp_listen_data_ready()\n\nAfter the listener svc_sock is freed, and before invoking svc_tcp_accept()\nfor the established child sock, there is a window that the newsock\nretaining a freed listener svc_sock in sk_user_data which cloning from\nparent. In the race window, if data is received on the newsock, we will\nobserve use-after-free report in svc_tcp_listen_data_ready().\n\nReproduce by two tasks:\n\n1. while :; do rpc.nfsd 0 ; rpc.nfsd; done\n2. while :; do echo \"\" | ncat -4 127.0.0.1 2049 ; done\n\nKASAN report:\n\n  ==================================================================\n  BUG: KASAN: slab-use-after-free in svc_tcp_listen_data_ready+0x1cf/0x1f0 [sunrpc]\n  Read of size 8 at addr ffff888139d96228 by task nc/102553\n  CPU: 7 PID: 102553 Comm: nc Not tainted 6.3.0+ #18\n  Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 11/12/2020\n  Call Trace:\n   \u003cIRQ\u003e\n   dump_stack_lvl+0x33/0x50\n   print_address_description.constprop.0+0x27/0x310\n   print_report+0x3e/0x70\n   kasan_report+0xae/0xe0\n   svc_tcp_listen_data_ready+0x1cf/0x1f0 [sunrpc]\n   tcp_data_queue+0x9f4/0x20e0\n   tcp_rcv_established+0x666/0x1f60\n   tcp_v4_do_rcv+0x51c/0x850\n   tcp_v4_rcv+0x23fc/0x2e80\n   ip_protocol_deliver_rcu+0x62/0x300\n   ip_local_deliver_finish+0x267/0x350\n   ip_local_deliver+0x18b/0x2d0\n   ip_rcv+0x2fb/0x370\n   __netif_receive_skb_one_core+0x166/0x1b0\n   process_backlog+0x24c/0x5e0\n   __napi_poll+0xa2/0x500\n   net_rx_action+0x854/0xc90\n   __do_softirq+0x1bb/0x5de\n   do_softirq+0xcb/0x100\n   \u003c/IRQ\u003e\n   \u003cTASK\u003e\n   ...\n   \u003c/TASK\u003e\n\n  Allocated by task 102371:\n   kasan_save_stack+0x1e/0x40\n   kasan_set_track+0x21/0x30\n   __kasan_kmalloc+0x7b/0x90\n   svc_setup_socket+0x52/0x4f0 [sunrpc]\n   svc_addsock+0x20d/0x400 [sunrpc]\n   __write_ports_addfd+0x209/0x390 [nfsd]\n   write_ports+0x239/0x2c0 [nfsd]\n   nfsctl_transaction_write+0xac/0x110 [nfsd]\n   vfs_write+0x1c3/0xae0\n   ksys_write+0xed/0x1c0\n   do_syscall_64+0x38/0x90\n   entry_SYSCALL_64_after_hwframe+0x72/0xdc\n\n  Freed by task 102551:\n   kasan_save_stack+0x1e/0x40\n   kasan_set_track+0x21/0x30\n   kasan_save_free_info+0x2a/0x50\n   __kasan_slab_free+0x106/0x190\n   __kmem_cache_free+0x133/0x270\n   svc_xprt_free+0x1e2/0x350 [sunrpc]\n   svc_xprt_destroy_all+0x25a/0x440 [sunrpc]\n   nfsd_put+0x125/0x240 [nfsd]\n   nfsd_svc+0x2cb/0x3c0 [nfsd]\n   write_threads+0x1ac/0x2a0 [nfsd]\n   nfsctl_transaction_write+0xac/0x110 [nfsd]\n   vfs_write+0x1c3/0xae0\n   ksys_write+0xed/0x1c0\n   do_syscall_64+0x38/0x90\n   entry_SYSCALL_64_after_hwframe+0x72/0xdc\n\nFix the UAF by simply doing nothing in svc_tcp_listen_data_ready()\nif state != TCP_LISTEN, that will avoid dereferencing svsk for all\nchild socket."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T08:27:53.997Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c7b8c2d06e437639694abe76978e915cfb73f428"
        },
        {
          "url": "https://git.kernel.org/stable/c/dfc896c4a75cb8cd7cb2dfd9b469cf1e3f004254"
        },
        {
          "url": "https://git.kernel.org/stable/c/42725e5c1b181b757ba11d804443922982334d9b"
        },
        {
          "url": "https://git.kernel.org/stable/c/cd5ec3ee52ce4b7e283cc11facfa420c297c8065"
        },
        {
          "url": "https://git.kernel.org/stable/c/fbf4ace39b2e4f3833236afbb2336edbafd75eee"
        },
        {
          "url": "https://git.kernel.org/stable/c/ef047411887ff0845afd642d6a687819308e1a4e"
        },
        {
          "url": "https://git.kernel.org/stable/c/7e1f989055622fd086c5dfb291fc72adf5660b6f"
        },
        {
          "url": "https://git.kernel.org/stable/c/fc80fc2d4e39137869da3150ee169b40bf879287"
        }
      ],
      "title": "SUNRPC: Fix UAF in svc_tcp_listen_data_ready()",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-52885",
    "datePublished": "2024-07-14T07:11:28.548Z",
    "dateReserved": "2024-05-21T15:35:00.782Z",
    "dateUpdated": "2024-12-19T08:27:53.997Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-52885\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-07-14T08:15:01.823\",\"lastModified\":\"2024-11-21T08:40:48.027\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nSUNRPC: Fix UAF in svc_tcp_listen_data_ready()\\n\\nAfter the listener svc_sock is freed, and before invoking svc_tcp_accept()\\nfor the established child sock, there is a window that the newsock\\nretaining a freed listener svc_sock in sk_user_data which cloning from\\nparent. In the race window, if data is received on the newsock, we will\\nobserve use-after-free report in svc_tcp_listen_data_ready().\\n\\nReproduce by two tasks:\\n\\n1. while :; do rpc.nfsd 0 ; rpc.nfsd; done\\n2. while :; do echo \\\"\\\" | ncat -4 127.0.0.1 2049 ; done\\n\\nKASAN report:\\n\\n  ==================================================================\\n  BUG: KASAN: slab-use-after-free in svc_tcp_listen_data_ready+0x1cf/0x1f0 [sunrpc]\\n  Read of size 8 at addr ffff888139d96228 by task nc/102553\\n  CPU: 7 PID: 102553 Comm: nc Not tainted 6.3.0+ #18\\n  Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 11/12/2020\\n  Call Trace:\\n   \u003cIRQ\u003e\\n   dump_stack_lvl+0x33/0x50\\n   print_address_description.constprop.0+0x27/0x310\\n   print_report+0x3e/0x70\\n   kasan_report+0xae/0xe0\\n   svc_tcp_listen_data_ready+0x1cf/0x1f0 [sunrpc]\\n   tcp_data_queue+0x9f4/0x20e0\\n   tcp_rcv_established+0x666/0x1f60\\n   tcp_v4_do_rcv+0x51c/0x850\\n   tcp_v4_rcv+0x23fc/0x2e80\\n   ip_protocol_deliver_rcu+0x62/0x300\\n   ip_local_deliver_finish+0x267/0x350\\n   ip_local_deliver+0x18b/0x2d0\\n   ip_rcv+0x2fb/0x370\\n   __netif_receive_skb_one_core+0x166/0x1b0\\n   process_backlog+0x24c/0x5e0\\n   __napi_poll+0xa2/0x500\\n   net_rx_action+0x854/0xc90\\n   __do_softirq+0x1bb/0x5de\\n   do_softirq+0xcb/0x100\\n   \u003c/IRQ\u003e\\n   \u003cTASK\u003e\\n   ...\\n   \u003c/TASK\u003e\\n\\n  Allocated by task 102371:\\n   kasan_save_stack+0x1e/0x40\\n   kasan_set_track+0x21/0x30\\n   __kasan_kmalloc+0x7b/0x90\\n   svc_setup_socket+0x52/0x4f0 [sunrpc]\\n   svc_addsock+0x20d/0x400 [sunrpc]\\n   __write_ports_addfd+0x209/0x390 [nfsd]\\n   write_ports+0x239/0x2c0 [nfsd]\\n   nfsctl_transaction_write+0xac/0x110 [nfsd]\\n   vfs_write+0x1c3/0xae0\\n   ksys_write+0xed/0x1c0\\n   do_syscall_64+0x38/0x90\\n   entry_SYSCALL_64_after_hwframe+0x72/0xdc\\n\\n  Freed by task 102551:\\n   kasan_save_stack+0x1e/0x40\\n   kasan_set_track+0x21/0x30\\n   kasan_save_free_info+0x2a/0x50\\n   __kasan_slab_free+0x106/0x190\\n   __kmem_cache_free+0x133/0x270\\n   svc_xprt_free+0x1e2/0x350 [sunrpc]\\n   svc_xprt_destroy_all+0x25a/0x440 [sunrpc]\\n   nfsd_put+0x125/0x240 [nfsd]\\n   nfsd_svc+0x2cb/0x3c0 [nfsd]\\n   write_threads+0x1ac/0x2a0 [nfsd]\\n   nfsctl_transaction_write+0xac/0x110 [nfsd]\\n   vfs_write+0x1c3/0xae0\\n   ksys_write+0xed/0x1c0\\n   do_syscall_64+0x38/0x90\\n   entry_SYSCALL_64_after_hwframe+0x72/0xdc\\n\\nFix the UAF by simply doing nothing in svc_tcp_listen_data_ready()\\nif state != TCP_LISTEN, that will avoid dereferencing svsk for all\\nchild socket.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: SUNRPC: corrige UAF en svc_tcp_listen_data_ready() Despu\u00e9s de que se libera el oyente svc_sock, y antes de invocar svc_tcp_accept() para el calcet\u00edn secundario establecido, hay una ventana que indica que el newsock retiene un oyente liberado. svc_sock en sk_user_data que clona desde el padre. En la ventana de ejecuci\u00f3n, si se reciben datos en el newsock, observaremos el informe de use-after-free en svc_tcp_listen_data_ready(). Reproducir mediante dos tareas: 1. while:; hacer rpc.nfsd 0; rpc.nfsd; hecho 2. mientras:; hacer eco \\\"\\\" | ncat -4 127.0.0.1 2049; Informe KASAN hecho: ================================================= ==================== ERROR: KASAN: slab-use-after-free en svc_tcp_listen_data_ready+0x1cf/0x1f0 [sunrpc] Lectura de tama\u00f1o 8 en la direcci\u00f3n ffff888139d96228 por tarea nc /102553 CPU: 7 PID: 102553 Comm: nc Not tainted 6.3.0+ #18 Nombre de hardware: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 12/11/2020 Seguimiento de llamadas:  dump_stack_lvl+ 0x33/0x50 print_address_description.constprop.0+0x27/0x310 print_report+0x3e/0x70 kasan_report+0xae/0xe0 svc_tcp_listen_data_ready+0x1cf/0x1f0 [sunrpc] tcp_data_queue+0x9f4/0x20e0 tcp_rcv_ establecido+0x666/0x1f60 tcp_v4_do_rcv+0x51c/0x850 tcp_v4_rcv+0x23fc/0x2e80 ip_protocol_deliver_rcu+0x62/0x300 ip_local_deliver_finish+0x267/0x350 ip_local_deliver+0x18b/0x2d0 ip_rcv+0x2fb/0x370 __netif_receive_skb_one_core+0x166/0x1b0 Process_backlog+0x24c/0x5e 0 __napi_poll+0xa2/0x500 net_rx_action+0x854/0xc90 __do_softirq+0x1bb/0x5de do_softirq+0xcb/0x100   ...  Asignado por la tarea 102371: kasan_save_stack+0x1e/0x40 kasan_set_track+0x21/0x30 __kasan_kmalloc+0x7b/0x90 svc_setup_socket+0x52/0x4f0 [sunrpc] 0x400 [sunrpc] __write_ports_addfd+0x209/0x390 [nfsd] write_ports+0x239/0x2c0 [nfsd] nfsctl_transaction_write+0xac/0x110 [nfsd] vfs_write+0x1c3/0xae0 ksys_write+0xed/0x1c0 do_syscall_64+0x3 8/0x90 Entry_SYSCALL_64_after_hwframe+0x72/0xdc Liberado por la tarea 102551: kasan_save_stack +0x1e/0x40 kasan_set_track+0x21/0x30 kasan_save_free_info+0x2a/0x50 __kasan_slab_free+0x106/0x190 __kmem_cache_free+0x133/0x270 svc_xprt_free+0x1e2/0x350 [sunrpc] _destroy_all+0x25a/0x440 [sunrpc] nfsd_put+0x125/0x240 [nfsd] nfsd_svc+ 0x2cb/0x3c0 [nfsd] write_threads+0x1ac/0x2a0 [nfsd] nfsctl_transaction_write+0xac/0x110 [nfsd] vfs_write+0x1c3/0xae0 ksys_write+0xed/0x1c0 do_syscall_64+0x38/0x90 entrada_SYSCALL_ 64_after_hwframe+0x72/0xdc Arregle el UAF simplemente sin hacer nada en svc_tcp_listen_data_ready() si state!= TCP_LISTEN, eso evitar\u00e1 desreferenciar svsk para todos los sockets secundarios.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.8\",\"versionEndExcluding\":\"4.14.322\",\"matchCriteriaId\":\"EA304272-C8A2-45E1-8E51-A4EAB3581183\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15\",\"versionEndExcluding\":\"4.19.291\",\"matchCriteriaId\":\"D2D2CA9F-4CC4-4AF5-8C6D-E58415AB782E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.251\",\"matchCriteriaId\":\"7FA663C4-CA72-4B5A-8592-7354D978F58E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.188\",\"matchCriteriaId\":\"43CAE50A-4A6C-488E-813C-F8DB77C13C8B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.121\",\"matchCriteriaId\":\"EC77775B-EC31-4966-966C-1286C02B2A85\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.39\",\"matchCriteriaId\":\"9BD1D4A1-304D-4187-8178-6D7C0050B1AF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.4.4\",\"matchCriteriaId\":\"A91BC267-63EE-413E-A6EF-6B96C2A278D1\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/42725e5c1b181b757ba11d804443922982334d9b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/7e1f989055622fd086c5dfb291fc72adf5660b6f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c7b8c2d06e437639694abe76978e915cfb73f428\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/cd5ec3ee52ce4b7e283cc11facfa420c297c8065\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/dfc896c4a75cb8cd7cb2dfd9b469cf1e3f004254\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ef047411887ff0845afd642d6a687819308e1a4e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fbf4ace39b2e4f3833236afbb2336edbafd75eee\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fc80fc2d4e39137869da3150ee169b40bf879287\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/42725e5c1b181b757ba11d804443922982334d9b\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/7e1f989055622fd086c5dfb291fc72adf5660b6f\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c7b8c2d06e437639694abe76978e915cfb73f428\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/cd5ec3ee52ce4b7e283cc11facfa420c297c8065\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/dfc896c4a75cb8cd7cb2dfd9b469cf1e3f004254\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ef047411887ff0845afd642d6a687819308e1a4e\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fbf4ace39b2e4f3833236afbb2336edbafd75eee\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fc80fc2d4e39137869da3150ee169b40bf879287\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.